Alaska earthquakes

M2.4 earthquake 139 km E of Chignik, Alaska

A magnitude 2.4 earthquake struck 139 km E of Chignik, Alaska on Sun, Apr 25, 2021, 11:45 AM AKDT (19:45 UTC), 70 km (44 mi) below the surface.

A larger quake followed: M3.4 105 km ENE of Chignik, Alaska. This one was a foreshock.

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Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
2.4 (ml), micro
Local time
UTC
2021-04-25 19:45:30 UTC
Depth
70.4 km (43.7 mi), intermediate-depth
Epicenter
56.184° N, 156.156° W
Region
Alaska
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Stations used
25

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 18 in the 60 days after this one and 12 in the 30 days before it.

After

  1. 2.6132 km ESE of Chignik, Alaska · 1971 days ago · 59 km deep · 15 km away
  2. 2.773 km W of Akhiok, Alaska · 1971 days ago · 56 km deep · 90 km away
  3. 2.5161 km ESE of Chignik, Alaska · 1970 days ago · 4 km deep · 63 km away
  4. 2.062 km SW of Akhiok, Alaska · 1963 days ago · 35 km deep · 89 km away
  5. 1.8Alaska Peninsula · 1961 days ago · 12 km deep · 95 km away
  6. 2.558 km ESE of Chignik, Alaska · 1961 days ago · 45 km deep · 88 km away
  7. 1.858 km SSW of Akhiok, Alaska · 1960 days ago · 27 km deep · 100 km away
  8. 1.686 km SSE of Ugashik, Alaska · 1951 days ago · 71 km deep · 84 km away
  9. 1.889 km SE of Ugashik, Alaska · 1946 days ago · 0 km deep · 92 km away
  10. 3.4105 km ENE of Chignik, Alaska · 1938 days ago · 82 km deep · 49 km away · felt by 1
  11. 2.8104 km WSW of Akhiok, Alaska · 1938 days ago · 10 km deep · 53 km away
  12. 2.084 km SSE of Ugashik, Alaska · 1937 days ago · 89 km deep · 86 km away
  13. 2.8107 km SE of Chignik, Alaska · 1935 days ago · 5 km deep · 76 km away
  14. 2.272 km SW of Akhiok, Alaska · 1932 days ago · 51 km deep · 78 km away
  15. 1.770 km ENE of Chignik, Alaska · 1930 days ago · 60 km deep · 82 km away
  16. 2.197 km SE of Ugashik, Alaska · 1927 days ago · 35 km deep · 75 km away
  17. 2.577 km SE of Chignik, Alaska · 1926 days ago · 20 km deep · 82 km away
  18. 2.882 km ENE of Chignik, Alaska · 1924 days ago · 55 km deep · 79 km away

Before

  1. 2.191 km SSE of Ugashik, Alaska · 1984 days ago · 77 km deep · 77 km away
  2. 2.7114 km E of Chignik, Alaska · 1985 days ago · 35 km deep · 26 km away
  3. 2.272 km W of Akhiok, Alaska · 1989 days ago · 59 km deep · 92 km away
  4. 2.561 km ESE of Chignik, Alaska · 1991 days ago · 55 km deep · 85 km away
  5. 2.6114 km E of Chignik, Alaska · 1992 days ago · 51 km deep · 26 km away
  6. 2.7101 km SE of Ugashik, Alaska · 1992 days ago · 57 km deep · 68 km away
  7. 2.3100 km W of Akhiok, Alaska · 1994 days ago · 7 km deep · 92 km away
  8. 2.378 km E of Chignik, Alaska · 1994 days ago · 23 km deep · 62 km away
  9. 2.4106 km E of Chignik, Alaska · 1994 days ago · 37 km deep · 34 km away
  10. 1.9115 km SE of Ugashik, Alaska · 1995 days ago · 20 km deep · 66 km away
  11. 2.586 km SE of Ugashik, Alaska · 1997 days ago · 67 km deep · 85 km away
  12. 2.084 km W of Akhiok, Alaska · 2008 days ago · 47 km deep · 82 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0215aiduu3 (also filed as us7000e565). Read Fri, Sep 25, 2026, 9:12 PM UTC.